Unlike other remote display protocols, such as the Window built-in RDP (+ RemoteFX), SPICE for open source KVM virtualization platforms, and the various protocols derived from them, the DDP is completely original from vCloudpoint, and with lots of optimization. In terms of image transmission and operation processing, DDP Graphic Acceleration module provides efficient image compression, transmission and coding, to ensure PC-like smoothness and responsiveness; additionally it reduces image compression loss to improve pixel resolution and color rendition as well as reducing network bandwidth and host resource consumption to optimize multi-process processing capabilities so that experience of multi-user scenarios can be the same as that of single user. In terms of audio transmission, the DDP virtual audio driver supports stable I / O bi-directional audio, and uses high code rates, bit rates, and sample rates to deliver high-definition audio quality while guaranteeing millisecond-level delayed audio transmission.